Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL RSN-0409 HS Silicone Resin

Dow DOWSIL RSN-0409 HS Silicone Resin is a high-solids, heat-stable methyl-phenyl silicone resin designed for demanding coating and encapsulation applications. It offers excellent thermal resistance, UV stability, and adhesion to diverse substrates. Ideal for LED encapsulants, aerospace coatings, and high-performance industrial finishes requiring long-term durability under extreme conditions.
  • dow dowsil rsn 0409 hs silicone resin_96c14963
  • dow dowsil rsn 0409 hs silicone resin_96c14963

Features Of Dow DOWSIL RSN-0409 HS Silicone Resin

  1. High-solids, solvent-based silicone resin offering excellent thermal stability up to 250 °C continuous service.

  2. Provides superior hardness, abrasion resistance, and chemical resistance in cured coatings.

  3. Enables formulation flexibility with good compatibility with organic resins (e.g., acrylics, alkyds) and pigments.

  4. Delivers low surface energy for enhanced water repellency and release performance.

  5. Designed for ambient- or heat-curable systems, supporting efficient processing across industrial coating lines.

Typical Applications Of Dow DOWSIL RSN-0409 HS Silicone Resin

  1. High-performance industrial maintenance coatings for metal substrates.

  2. Heat-resistant coatings for exhaust components, ovens, and furnace parts.

  3. Functional topcoats in architectural and infrastructure applications requiring weatherability.

  4. Release layers in composite manufacturing and mold surface treatments.

  5. Hybrid silicone-organic coatings for automotive under-hood and engine bay components.

Specifications Of Dow DOWSIL RSN-0409 HS Silicone Resin

Chemical TypeMethyl-phenyl silicone resin
Product FormSolvent solution (xylene and aromatic hydrocarbon blend)
AppearanceClear, colorless to pale yellow liquid
Solids Content~60 wt% (as supplied)
Viscosity (25 °C)1,200–1,800 cP (Brookfield RV, spindle #3, 12 rpm)
Density (25 °C)0.92–0.95 g/cm³
VOC Content~400 g/L (calculated per ASTM D3960)
Key FeaturesHigh thermal stability, excellent film integrity, low Tg (~30 °C)


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